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Finding the Fourth Proportional to 99,765.84, 137,677.66 and 54,444.18

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Solution

The fourth proportional to 99,765.84, 137,677.66 and 54,444.18 is: 75,133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,765.84 : 137,677.66 = 54,444.18 : x
  2. Step 2: Convert to fraction form
    99,765.84/137,677.66 = 54,444.18/x
  3. Step 3: Cross multiply
    99,765.84x = 137,677.66 × 54,444.18
  4. Step 4: Simplify right side
    99,765.84x = 7,495,747,303.02
  5. Step 5: Solve for x
    x = 7,495,747,303.02/99,765.84
  6. Step 6: Final answer
    x = 75,133.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.